The first card you add into Wallet will be your default card. To change your default card, open Wallet, touch and hold the card you want to make the default and drag in front of the other cards.
To change the default on your iPad, go to Settings > Wallet & Apple Pay™, tap “Default Card” and choose a new card.
To change your default card on your Apple Watch, open the Watch app on your iPhone and tap the My Watch tab, scroll down and tap Wallet & Apple Pay™, tap “Default Card” and tap a card.
